Planetary gear transmission systems or components inventions 08/08

20080207374 - Drive apparatus: A hybrid drive unit that includes an input shaft connected to an engine; an output shaft connected to wheels; a first rotary electric machine; a second rotary electric machine connected to the output shaft; a power distribution device that distributes a rotational driving force of the input shaft to the... Agent: Oliff & Berridge, Plc

20080207373 - Electrically-variable transmission having two forward low range electrically-variable modes and a reverse electrically-variable mode: An electrically-variable transmission is provided with input member and output member, first and second motor/generators, a first planetary gear set and multiple additional planetary gear sets as well as at least four torque-transmitting mechanisms that are selectively engagable alone or in different combinations to establish a reverse electrically-variable operating mode,... Agent: General Motors Corporation Legal Staff

20080207372 - Three mode electrically-variable transmission: An electrically-variable transmission is provided with first and second motor/generators and three planetary gear sets. The planetary gear sets have continuous interconnections, and selective connections via a plurality of torque-transmitting mechanisms, that provide three forward electrically-variable modes. Preferably, the planetary gear sets are characterized by effective gear ratios such that... Agent: General Motors Corporation Legal Staff

20080207375 - Hydraulic control apparatus for automatic transmission, and hybrid drive system provided with the same: A hydraulic control apparatus includes a switching device that switches between a hydraulic servo of the plurality of hydraulic servos of the first friction engaging element and a hydraulic servo of the plurality of hydraulic servos of the second friction engaging element so as to supply a control pressure from... Agent: Oliff & Berridge, Plc

20080207376 - Electric continuously variable transmission and the driving method thereof: Disclosed herein is an electric continuously variable transmission. The transmission of the present invention includes a first rotating plate (110) which is mounted to a first shaft and provided with a sun gear (112), a second rotating plate (120) to which a planetary gear unit (121) is mounted, and a... Agent: Ipla P.a.

20080207377 - Oscillating internally meshing planetary gear system and method for manufacturing eccentric body shaft: The oscillating internally meshing planetary gear system has the configuration of rotating external gears inside an internal gear oscillatingly through the intermediary of eccentric bodies so that a relative rotation between the internal gear and the external gears is taken out through a pair of first and second carriers arranged... Agent: Squire, Sanders & Dempsey L.l.p.

20080207378 - Friction drive device: A friction drive device has first and second rollers, in which the ratio of the transmission power and the pressing power is nearly constant regardless of the magnitude of the transmission power. The rollers have center axes that are spaced apart by prescribed radial distance, and arranged relative to an... Agent: Global Ip Counselors, LLP

20080207379 - Continuously variable transmission: A continuously variable transmission comprises a drive shaft which has first and second drive shafts and is provided with rotational power, a planetary gear unit which is meshed with the first drive gear of the drive shaft and has a sun gear secured to an output shaft, and a transmission... Agent: Birch Stewart Kolasch & Birch

20080207380 - Wide ratio transmissions with multliple gear ratios: The transmission has a plurality of members that can be utilized in powertrains to provide at least seven forward speed ratios and one reverse speed ratio. The transmission includes three planetary gear sets having seven torque-transmitting mechanisms and two fixed interconnections. The powertrain includes an engine and torque converter that... Agent: General Motors Corporation Legal Staff

20080207382 - Automatic transmission: [Solution] The apparatus includes: a first planetary gear device PG0 having a ring gear R0 connected to an input shaft; a second planetary gear device PG1 having a carrier C1 connected to a carrier C0 of the first planetary gear device, and a sun gear S1 connected to R0; a... Agent: Sughrue Mion, Pllc

20080207383 - Automatic transmission: [Means for Solution] In single pinion planetary gear mechanisms 21 and 22, a second sun gear S1 is linked to an input shaft 14 in a power-transmissible manner, a first sun gear S0 is linked to a third control brake B-3, and a first carrier C0 and a second ring... Agent: Sughrue Mion, Pllc

20080207384 - Automatic transmission: An automatic transmission that includes two adjacent clutches. Two clutches each include a clutch drum, a piston that structures an operating oil chamber with a portion of the clutch drum used as a cylinder, a plurality of friction plates that engage with the clutch drum, a cancel oil chamber that... Agent: Oliff & Berridge, Plc

20080207385 - Automatic transmission: An automatic transmission includes two clutches that are disposed such that they overlap in an axial direction and occupy different positions in a radial direction. Each of the two clutches includes a clutch drum, a piston that forms a working fluid chamber for which a portion of the clutch drum... Agent: Oliff & Berridge, Plc

20080207386 - Automatic transmission: An automatic transmission that includes two clutches that are disposed at positions that overlap in an axial direction and are different in a radial direction. The two clutches each include: a clutch drum, a piston that structures a working oil chamber with a portion of the clutch drum used as... Agent: Oliff & Berridge, Plc

20080207381 - Multi-speed transmission: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices may include clutches and brakes.... Agent: General Motors Corporation Legal Staff

20080207387 - Planetary gear type multistage transmission for vehicle: The transmission 10 is constructed so that, in the first transmission portion 36, the rotation of the input shaft 16 is outputted to the second transmission portion 38 via the first intermediate output path M1 and the second intermediate output path M2 accelerated and rotated with respect to the first... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20080207388 - Lightweight gearing: A high ratio epicyclic gear assembly comprising two high torque planetary trains through which power flows via two parallel paths in one or other of which is an intermediate star train (7) with a low torque differential train or gear which transmits the combined power in such a way that... Agent: King & Schickli, Pllc

20080207389 - Drive hub unit for a wind power generator: A transmission-hub unit (1) for a wind energy installation includes transmission (3) including a single piece rotatably supported transmission part (12, 27) which comprises the input gear wheel (1 1) of the transmission (3) as well as the blade-hub (2). Preferably, only two radial bearings (16, 18) for the support... Agent: Ronald S. Lombard Patents And Trademarks

20080200296 - Electrically-variable transmission with two differential gear sets: An electrically-variable transmission having two differential gear sets and two motor/generators uses four torque-transmitting mechanisms and selective as well as continuous connecting members and preferably provides an input-split operating mode and an output-split operating mode.... Agent: General Motors Corporation Legal Staff

20080200297 - Simple bicycle drive shaft transmission: This transmission (24 and 26) operates by use of a drive shaft (18 and 20), that by being extendible and retractable, can vary in length. Gears on each end of the drive shaft deliver power from one of a number of concentric rings of gear teeth on a pedal gear... Agent: Terry Hahn

20080200298 - Forward and rearward motion switching mechanism using brake band: A forward and rearward motion switching device to be used in an automatic transmission system for a vehicle, comprises a planetary mechanism provided with an input element, an element to be fixed and an output element which are disposed coaxially and are rotatable relative to each other, the planetary mechanism... Agent: Miles & Stockbridge PC

20080200299 - Multi-speed gearbox for low spool driven auxiliary component: A turbine engine power generation system includes a gearbox that receives rotational drive from a low spool through an input gear, in one example. The gearbox includes first and second clutches that are coupled to an input shaft of an auxiliary component, such as a generator. First and second output... Agent: Carlson, Gaskey & Olds, P.C.

20080194368 - Apparatus for actuating a motor vehicle transmission: In a device with a unit for actuating a motor vehicle transmission superimposes a first torque of a first drive assembly with at least one second torque of a second drive assembly, the unit modifies the first torque and the second torque in order to fulfill a propulsion request of... Agent: Crowell & Moring LLP Intellectual Property Group

20080194369 - Power transmission device for a motor vehicle which is equipped with a free wheel mechanism that drives an oil pump: The invention relates to a device (1) for the transmission of power between a shaft (2) of a heat engine (3) and a wheel (5) axle shaft (4) of a motor vehicle. The inventive device (1) comprises at least one electrical machine (6, 7) comprising a machine shaft (8, 9)... Agent: Nicolas E. Seckel Patent Attorney

20080194370 - Transmission system with safety device: A transmission system with a safety device for preventing lockup occurring. The transmission includes a first gear train (7) having a first gear element (17), a second gear train (9) having a second gear element (21), a first gear selector device (29) arranged for selecting the first gear element (29),... Agent: Knobbe Martens Olson & Bear LLP

20080194371 - Vehicular drive control apparatus and control method of vehicular drive system: A rotation speed of a transmitting member is controlled such that a predetermined rotation speed difference or predetermined rotation speed ratio is obtained between the rotation speed of the transmitting member and an eighth rotating element or a fourth rotating element. By detecting a change in the rotation speed of... Agent: Oliff & Berridge, Plc

20080194372 - Transmission unit, in particular a multi-range transmission: A transmission unit, especially a multirange transmission, includes two superposition gears that are embodied as triple-shaft planetary gears, a continuously variable transmission in the form of a traction gear, and a way for controlling the transmission ratio on the traction gear. The individual superposition gears and the continuously variable transmission... Agent: Taylor & Aust, P.c.

20080194373 - Differential for vehicle: A differential (1) for a vehicle includes a differential case (2), side gears (5L, 5R) rotatably accommodated in the differential case (2), pinion gears (3, 4) engaged with the side gears (5L, 5R), and pinion gear shaft (50) inserted through the pinion gears (3, 4) to be supported by the... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.c.

20080194374 - Multistage automatic transmission with three planetary gear sets: A multi-stage automatic transmission possesses an input drive shaft (AN), an output drive shaft (AB), three single planetary gear sets (RS1, RS2, RS3) as well as five shifting elements (A to E), via the pairwise selective closure of which, an entry speed of rotation of the input drive shaft (AN)... Agent: Davis Bujold & Daniels, P.l.l.c.

20080194375 - Planetary gear mechanism: A planetary gear mechanism that follows or precedes a transmission, and consists of a housing, a sun wheel, at least two planet wheels, a planet arm, and a gear ring. There is a locking device for the housing, the gear ring, and a power take-off, and a locking device for... Agent: Collard & Roe, P.c.

20080194376 - Bicycle hub assembly: A multi-speed internal bicycle hub transmission assembly includes a hub axle, a driver, a hub shell, a power transmission mechanism, a pawl and a pawl retracting mechanism. The driver is rotatably supported to the hub axle. The hub shell is rotatably supported to the hub axle. The power transmission mechanism... Agent: Global Ip Counselors, LLP

20080194377 - Apparatus and method of using a hardness differential and surface finish on mating hard gears: An apparatus and method for finishing the mating surfaces of a gear set or gear train including at least a first and second rotatably connected gear element in dynamic, lubricated contact. A hardness differential is employed between mating gear surfaces to balance surface damage imparted by friction and plastic deformation.... Agent: General Motors Corporation Legal Staff

20080194378 - Epicyclic gear system with flexpins: An epicyclic gear system (A) includes a sun gear (2), a ring gear (4) located around the sun gear, planet gears (6) organized in two arrays between the sun and ring gears, and a carrier (8) having walls (14) located beyond the planet gears and flexpins (24) that project from... Agent: Polster, Lieder, Woodruff & Lucchesi

20080188338 - Assembly including a planetary pinion carrier and one-way clutch: A planetary gear unit for an automatic transmission includes a pinion carrier including a first disc formed with first holes located radially from an axis joined to a second disc spaced axially from the first disc and formed with second holes, each second hole being aligned with a first hole,... Agent: Macmillan, Sobanski & Todd, LLC

20080188339 - Multi-group transmission: A multi-group transmission is proposed, said transmission comprising a gearbox actuator, in which the working cylinder of the activating devices of the gearbox actuator, the required air channels (2), and the clutch actuator (4) are integrated into the gearbox housing (3).... Agent: Davis Bujold & Daniels, P.l.l.c.

20080188340 - Power train for motor vehicles or the like: A four cycle internal combustion engine that eliminates the need for a crankshaft and fly wheel includes at least a cylinder and a piston reciprocally disposed in the cylinder. A spur gear and a connecting rod having a first end pivotally connected to the piston and a second end pivotally... Agent: Lowe Hauptman Ham & Berner, LLP

20080188341 - Cycloid limited slip differential and method: A differential is provided comprising a rotatable differential housing, first and second output members, a first cycloid disk having an epitrochoid groove, a second cycloid disk having a hypotrochoid groove, a coupling disk connected having a plurality of holes each containing a sphere, wherein the spheres are engageable with the... Agent: General Motors Corporation Legal Staff

20080188342 - Dual clutch transmission with multiple range gearing: A vehicle powertrain comprising a multiple speed transmission with ratio range gearing is disclosed. The range gearing provides increased ratio coverage. A transition between a low speed range and a high speed range is achieved with no torque interruption whereby a gear ratio shift between the highest gear ratio in... Agent: Donald J. Harrington Brooks Kushman P.C.

20080188343 - Differential assembly with inverted bearing: A differential includes first and second case members that are attached to each other to define an inner cavity that receives a differential gear assembly. A first tapered roller bearing is associated with the first case member and a second tapered roller bearing is associated with the second case member.... Agent: Carlson, Gaskey & Olds, P.C.

20080188344 - Wide ratio transmission with four planetary gear sets: The transmission has a plurality of members that can be utilized in powertrains to provide at least eight forward speed ratios and one reverse speed ratio. The transmission includes four planetary gear sets having seven torque-transmitting mechanisms, four fixed interconnections, and a stationary (grounded) member. The powertrain includes an engine... Agent: General Motors Corporation Legal Staff